Improvement in boring-tools for artesian wells



- with two pins, f--one on each A UNITED STATES PATENT OFFICE.

HENRY, H. DANIELS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT iN BORING-TOOLS Foa AaTEslAN WELLS.

Specification `forming part of Letters Patent No. 47,804, dated May 23',1865.

To all whom it may concern:

Be it known that I, HENRY H. DANIELs, ot' Philadelphia, Pennsylvania,have invented an instrument for withdrawing boring-tools, pipes, andother articles from Artesian wells; and I do hereby declare thefollowing to be a full7 clear, and exact Idescription of the same,reference being had to the accompany ing drawings, and to the letters ofreference marked thereon. j

My invention consists of certain plates, levers, and a guided bar withprojections, the whole being constructed and arranged for joint actionin the manner described hereafter, and forming an instrument whereby(letached boring tools or implements jammed Ain Artesian wells may bewithdrawn therefrom.

My invention further consists of a modification of the said instrumentsto be used for withdrawing pipes from wells.

In order to enableothers to make and use my invention, I will nowproceed to describe its construction and operation.

On reference to the accompanying drawings, which form a part of thisspecification, Figure l is a front view, partly in section, ot' myinstrument for withdrawing boringtools and other objects from Artesianwells; Fig. 2, an edge view of the instrument; Fig. 3, a transversesection on the line 1 2, Fig. l; and Fig. 4 a front view of a modifiedinstrument as arranged for withdrawing pipes from wells.

On reference to Figs. 1 and 2, A and A are two plates, connectedtogether by bolts at a, to which are hung the two levers B B. Each ofthe two plates A and Al has a projection, d, and in each projection isan elon gated slot, e. A bar, D, is situated between the-twoprojections, and this bar is provided side-one pin passing through theslot c of the projection cl of the plate A and the other through the-slot of the projection of the other plate, A. Lf-.Ehe lower end ofthebar D has two projecftions, t', one bearing against the inside of theVeshort arm oi' the lever B and the other against the short arm of thelever B', these arms being inclined upward toward each other, as seen inFig. 1. are inclined downward toward each other, and the extreme end wof each is beveled,

The long arms ot' the levers the inside of the arm above the beveled endbeing serrated as far as the shoulder m.. The movement of the arms B andB toward each other is limited by projections x-on each arm, the twoprojections meeting each other.

When any one of the boringLtools or other articles used in sinkingArtesian wells has become detached from the boring bar or rope or hasbecome jammed, the above-described instrument is lowered into the wellby means of a rope attached to the eye h at the upper end of the bar D.VVhilebeing thus lowered the long arms of the levers B and B willbemoved toward each other tothe full extent permitted' by the projectionsw a', owing to the weight of the levers and plates and to/the inclinedshort arms acting on the projections t i at the lower end of therod D,but when the downward movement of the levers is arrested by the lowerends of the long arms coming in contact with the boring-tool or otherarticle `to be withdrawn the bar D will continue to descend and willpermit the long` arms to be opened, their' beveled ends w w sliding overthe head or end of theboringtool. VThe rope to which the instrument issuspended is then raised, in doing which the first ei'ort will be toraise the bar D while the levers remain stationary. This raising of thebarcauses the projections t' t' to act against and open the shortarms ofthe levers and to close the long arms which grasp the boringtool andhold it with their serrations n or shoulders m m, so that on thecontinued elevation of the rope the entire instrument, with theboring-tool or other detached implement in the well, will be raisedtherefrom.

ln the instrument illustrated in Fig. 4 the action of the levers isreversed, so as to enable them to seize a pipe. In this case the lowerend of the bar D has two cross-beams y, situated on the outside of theplates B .and B', and connected together at the ends by pins g, whichare arranged to act against the outward inclined arms of the levers Band B' when the bar is elevated, thereby causing the pointed ends of thelong arms to bear against the interior of the pipe, which is withdrawnwith the instrument.

I do not desire to claim, broadly, the use ot' the jaws or levers B B'caused to contract by piti-ling a rope connected to them; but

I claim as my invention and desire to se cure by Letters Patent- 1. Theinstrument composed of the plates A and A', levers B and B', and guidedbarD with its projections i 1", the whole-being constructed and arrangedin the manner and forthe purposes herein described and illustrated,4

in Figs. 1, 2, and 3.

8. The modified instrument composed of the plates A and A', levers B andB,.guided bar. D with its pins g g, or their equivalents,

the whole being arranged and operating substantially as and for thepurpose herein set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

HENRY H. DANIELS.

